CN209811260U - Chamfering cutter bar, blade and chamfering cutter - Google Patents
Chamfering cutter bar, blade and chamfering cutter Download PDFInfo
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- CN209811260U CN209811260U CN201920030096.4U CN201920030096U CN209811260U CN 209811260 U CN209811260 U CN 209811260U CN 201920030096 U CN201920030096 U CN 201920030096U CN 209811260 U CN209811260 U CN 209811260U
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Abstract
The application relates to the technical field of cutters, and particularly relates to a chamfering cutter bar, a blade and a chamfering cutter, which are used for solving the problem that the machining cost is high as the parameters of the blade edge of the conventional chamfering cutter cannot be adjusted. The chamfering tool comprises the chamfering tool bar and the blade, wherein the chamfering tool bar comprises at least one group of adjusting structures, and each adjusting structure comprises a groove, an adjusting block, an adjusting bolt and a fastening jackscrew. The chamfering cutter bar and the chamfering cutter can adjust the length of the blade extending out of the cutting edge of the chamfering cutter bar along the axial direction of the chamfering cutter bar, have strong applicability to workpieces with different machining precision requirements, and are beneficial to reducing the machining cost.
Description
Technical Field
The application relates to the technical field of cutters, and particularly relates to a chamfering cutter bar, a blade and a chamfering cutter.
Background
The chamfer cutter is a chamfer tool in machining and is used for chamfering round holes or special-shaped edges. At present, common chamfer cutters are welding type chamfer cutters and machine clamping type chamfer cutters. As shown in fig. 1, the blade of the welded-type chamfer cutter is welded to the end of the cutter bar. As shown in fig. 2, the blade of the machine-clamped chamfering tool is fixed to the end of the tool bar by a bolt. Therefore, the cutting edge parameters of the welded chamfering tool or the blade of the machine-clamped chamfering tool cannot be adjusted.
In the process of long-term use of the existing chamfering tool, due to abrasion of the blades or other reasons, the cutting edges of the two blades may fall, and then the phenomenon of single-edge cutting occurs, so that the machined chamfering precision is poor. Because the parameters of the cutting edge of the blade cannot be adjusted, the whole blade or a new blade can only be replaced in the process of machining a workpiece with higher precision (such as circular run-out and roundness) by using the conventional chamfering tool, so that the machining cost is higher.
SUMMERY OF THE UTILITY MODEL
The embodiment provides a chamfering cutter bar, a blade and a chamfering cutter, which are used for solving the problem that the machining cost is higher as the parameters of the cutting edge of the existing chamfering cutter cannot be adjusted.
In a first aspect, the present embodiment provides a chamfering tool bar, which comprises a tool bar body and at least one set of adjusting structure, wherein the adjusting structure comprises a groove, an adjusting block, an adjusting bolt and a fastening jackscrew.
The groove is arranged on the side wall of the cutter bar body along the direction of the axis of the cutter bar body and penetrates through one end face of the cutter bar body.
The adjusting block and the adjusting bolt are arranged at one end of the groove far away from the end face; the adjusting bolt is perpendicular to the axis and meshed with the adjusting block, and the action surface of the meshing force is perpendicular to the axis of the adjusting bolt; be equipped with first regulation inclined plane on the lateral wall of regulating block, first regulation inclined plane is located in the recess to the slope is followed and is close to the axis direction reduces gradually.
The end part of the fastening jackscrew penetrates through the side wall of the cutter bar body and is positioned in the groove.
Optionally, the adjusting structure further comprises a ball head jackscrew, the ball head jackscrew penetrates through the side wall of the cutter bar body, and the ball head part of the ball head jackscrew is located in the groove and at the bottom of the groove.
Optionally, at least one protrusion is arranged on the side wall of the adjusting block; at least one matching groove is formed in the side wall of the adjusting bolt, and the adjusting bolt and the adjusting block are meshed with the matching groove through the protrusion.
Optionally, the adjusting bolt is an inner hexagonal adjusting bolt, and the protrusion is arranged on the side wall of the end, provided with the inner hexagon, of the inner hexagonal adjusting bolt.
Optionally, one end of the cutter bar body, which is provided with the groove, is of a circular truncated cone structure.
In a second aspect, the present embodiment provides a blade, which is applied to the chamfering tool bar provided by the above first aspect, the blade includes a blade base, a cutting edge and a matching inclined plane, one end of the blade base is provided with the cutting edge, the other end is provided with the matching inclined plane, the matching inclined plane is used for matching with the first adjusting inclined plane.
Optionally, a second adjusting inclined surface is arranged on the side wall of the blade and used for being matched with the ball head jackscrew.
Optionally, the cutting edge is welded to the insert base.
In a third aspect, the present embodiment provides a chamfer cutter, which includes the chamfer cutter bar provided in the first aspect, and the insert provided in the second aspect, wherein the insert is mounted in the groove of the chamfer cutter bar.
The chamfer cutter arbor and chamfer sword that this embodiment provided not only can be followed the axial of chamfer cutter arbor and adjusted the length that the blade that this embodiment provided stretches out the cutting edge of chamfer cutter arbor, can also follow the cutting angle of the radial regulation blade of chamfer cutter arbor, all have very strong suitability to the work piece that different machining precision required or different cutting angles required, are favorable to reducing the processing cost.
Drawings
In order to more clearly illustrate the technical solution of the present embodiment, the drawings needed to be used in the embodiment will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without any creative effort.
Fig. 1 is a schematic structural view of a conventional machine-clamped chamfering tool.
Fig. 2 is a schematic structural view of a conventional machine-clamped chamfering tool.
Fig. 3 is a schematic structural diagram of the chamfering tool bar provided in this embodiment.
Fig. 4 is a schematic structural diagram of the tool bar body provided in this embodiment.
Fig. 5 is a first schematic view of the engagement between the adjusting block and the adjusting bolt provided in this embodiment.
Fig. 6 is a second schematic view of the engagement between the adjusting block and the adjusting bolt provided in this embodiment.
Fig. 7 is a first schematic view of a blade mounting structure provided in this embodiment.
Fig. 8 is a schematic view of a blade mounting structure according to the present embodiment.
Fig. 9 is a third schematic view of a blade mounting structure provided in this embodiment.
Fig. 10 is a first schematic structural diagram of a blade according to the present embodiment.
Fig. 11 is a second schematic structural diagram of the blade according to the present embodiment.
Fig. 12 is a schematic structural view of the chamfer cutter provided in the present embodiment.
Description of reference numerals: 1. a cutter bar body; 2. a groove; 3. an adjusting block; 31. a first adjustment ramp; 4. adjusting the bolt; 5. Fastening a jackscrew; 6. ball head jackscrew; 7. a blade; 71. a blade base body; 72. a cutting edge; 73. a mating bevel; 74. a second adjustment ramp.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiment, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without any creative work belong to the protection scope of the present embodiment.
Example 1
Referring to fig. 3, the present embodiment provides a chamfering tool bar, which includes a tool bar body and at least one set of adjusting structures, such as one set, two sets, three sets, etc.
Referring to fig. 4, the tool bar body includes a clamping end and a cutting end, the clamping end is used for being clamped and fixed by processing equipment such as a processing center, and the cutting end is used for installing a blade and adjusting a structure. The end part of the cutting end is of a circular truncated cone structure, the circular truncated cone structure is matched with the shape of the cutting edge of the blade, the length of the cutting edge extending out of the cutter bar body can be reduced, and the rigidity of the blade in the cutting process is improved.
When the cutter bar body is provided with two groups of adjusting structures, the two groups of adjusting structures are centrosymmetric about the axis of the cutter bar body. When the tool bar body is provided with three groups of adjusting structures, the chamfering tool bar can be superposed with the chamfering tool bar before rotation after rotating for 120 degrees around the axis of the chamfering tool bar.
Specifically, in this embodiment, each set of adjustment structures includes a recess, an axial adjustment structure, and a tightening tip, and each set of adjustment structures is capable of mounting and adjusting one blade.
The groove is arranged on the side wall of the cutter bar body along the axial direction of the cutter bar body and penetrates through the end face of the cutting end of the cutter bar body. The groove is used for mounting the blade and has a width not less than the thickness of the blade. After the blade is arranged in the groove, the cutting edge of the blade protrudes out of the end face of the cutting end, and the other end of the blade is located in the groove.
The axial adjusting structure is arranged at one end, far away from the cutting end, of the groove and comprises an adjusting block and an adjusting bolt. Specifically, one end of the groove far away from the cutting end is provided with a mounting groove matched with the shapes of the adjusting block and the adjusting bolt, and the adjusting block and the adjusting bolt are mounted in the mounting groove. The adjusting bolt is perpendicular to the axis of the cutter bar body and is meshed with the adjusting block, and the action surface of the meshing force is perpendicular to the axis of the adjusting bolt. In the present embodiment, the action surface of the engagement force refers to a plane where the adjusting block bears the pressure applied by the rotating adjusting bolt. When the action surface of the meshing force is vertical to the adjusting bolt, the adjusting bolt can drive the adjusting block to move towards the same direction.
In a possible implementation manner, as shown in fig. 5-6, the side wall of the adjusting block is provided with at least one protrusion; at least one matching groove is formed in the side wall of the adjusting bolt, and the protrusion is matched with the matching groove to achieve mutual meshing of the adjusting bolt and the adjusting block.
Optionally, the adjusting bolt may be an inner hexagonal adjusting bolt, and the protrusion is provided on a side wall of the end of the inner hexagonal adjusting bolt provided with the inner hexagon.
The side wall of the adjusting block is provided with a first adjusting inclined surface, the first adjusting inclined surface is positioned in the groove and is used for being in contact with the end part of the blade arranged in the groove, and the gradient of the first adjusting inclined surface is gradually reduced along the axial direction close to the cutter bar body.
The fastening jackscrew passes through the lateral wall of cutter arbor body to stretch into in the recess, in order to exert the clamp force to installing in the recess blade, the fixed blade. The number of the fastening screws may be set in advance, for example, two, three, or the like.
Referring to fig. 7-9, when the insert is mounted in the chamfering tool holder, the end of the insert away from the cutting edge contacts the first adjustment bevel. When the length of the cutting edge protruding out of the end face of the cutting end needs to be increased, the fastening jackscrew is unscrewed, the adjusting bolt is rotated to move towards the axis direction close to the cutter bar body, and then the adjusting block is driven to move towards the axis direction close to the cutter bar body. Because the first regulation inclined plane of regulating block reduces along the axis direction that is close to the cutter arbor body gradually, consequently, at the in-process of regulating block motion, the regulating block just extrudees the blade of installing in the recess to make the blade along the recess to the direction motion of keeping away from the regulating block, increase the length that the cutting edge of blade stretches out the terminal surface of cutting end. Subsequently, the position of the blade can be fixed by tightening the fastening jackscrew.
When the length of the cutting edge protruding out of the end face of the cutting end needs to be reduced, the fastening jackscrew is unscrewed, and the adjusting bolt is rotated to move towards the direction of the axis far away from the cutter bar body, so that the adjusting block is driven to move towards the direction of the axis far away from the cutter bar body, and a gap is generated between the blade and the first adjusting inclined surface of the adjusting block. At the moment, the pushing blade is manually pushed to move towards the direction close to the adjusting block along the groove, so that the length of the cutting edge protruding out of the end face of the cutting end can be reduced.
In addition, optionally, the adjusting structure provided by this embodiment further includes a radial adjusting structure. The radial adjusting structure is a ball head jackscrew. The bulb jackscrew is arranged close to the cutting end of the cutter bar body, penetrates through the side wall of the cutter bar body, and the bulb part of the bulb jackscrew is positioned in the groove and at the bottom of the groove. When the blade is arranged in the groove, the ball head jackscrew is contacted with the side wall of the blade. When the cutting angle of the blade needs to be adjusted to be small, when the ball head jackscrew is rotated to move towards the direction close to the blade, the ball head part can extrude the side wall of the blade to promote the blade to move towards the direction far away from the bottom of the groove, and therefore the cutting angle of the blade is reduced. When the cutting angle of the blade needs to be increased, when the ball head jackscrew is rotated to move in the direction away from the blade, a gap is formed between the ball head part and the side wall of the blade, and the blade is manually pushed to move towards the bottom of the groove, so that the cutting angle of the blade can be increased.
To sum up, the chamfer cutter arbor that this embodiment provided not only can stretch out the length of the cutting edge of chamfer cutter arbor along the axial adjustment blade of chamfer cutter arbor, can also follow the cutting angle of the radial adjustment blade of chamfer cutter arbor, all has very strong suitability to the work piece that different machining precision required or different cutting angle required, is favorable to reducing the processing cost.
Example 2
Referring to fig. 10-11, the present embodiment provides an insert for a chamfering tool bar as shown in embodiment 1. The insert includes an insert base, a cutting edge, and a mating bevel.
One end of the insert base is provided with a cutting edge, which is typically shaped as a parallelogram or triangle, etc. The cutting edge may be welded to the insert base to ensure stability of the cutting edge.
The other end of the blade base body is provided with a fitting slope for fitting with the first regulation slope shown in embodiment 1. Specifically, after the blade is mounted on the chamfering cutter bar, the slope of the matching inclined plane gradually rises along the direction close to the axis of the cutter bar body and is attached to the first adjusting inclined plane of the adjusting block. That is, the mating slope has the same slope as the first adjustment slope.
Optionally, a second adjusting inclined surface is arranged on the side wall of the blade base body, and the second adjusting inclined surface is used for being matched with the ball head jackscrew. When the blade is arranged in the groove of the chamfering cutter bar, the second adjusting inclined plane is positioned at the bottom of the groove and just contacts with the ball head part of the ball head jackscrew.
The blade that this embodiment shows can be installed in above-mentioned chamfer cutter arbor to under the effect of the regulation structure of chamfer cutter arbor, adjust its length and the cutting angle that stretches out the cutting edge of chamfer cutter arbor, all have very strong suitability to different machining precision requirements or different cutting angle requirements, be favorable to reducing the processing cost.
Example 3
Referring to fig. 12, the present embodiment provides a chamfer cutter, which includes a chamfer cutter bar shown in embodiment 1 and a blade shown in embodiment 2, wherein the blade is mounted in a groove of the chamfer cutter bar to form the chamfer cutter of the present embodiment. The chamfering tool can adjust the length of the blade extending out of the cutting edge of the chamfering tool bar under the action of the adjusting structure, can also adjust the cutting angle of the blade, has strong applicability to workpieces with different machining precision requirements or different cutting angle requirements, and is favorable for reducing the machining cost.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a specific embodiment of the present embodiment, so that those skilled in the art can understand or implement the present embodiment. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present embodiment is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present embodiments is limited only by the appended claims.
Claims (9)
1. A chamfering cutter bar is characterized by comprising a cutter bar body and at least one group of adjusting structures, wherein each adjusting structure comprises a groove, an adjusting block, an adjusting bolt and a fastening jackscrew,
the groove is arranged on the side wall of the cutter bar body along the direction of the axis of the cutter bar body and penetrates through one end face of the cutter bar body;
the adjusting block and the adjusting bolt are arranged at one end of the groove far away from the end face; the adjusting bolt is perpendicular to the axis and meshed with the adjusting block, and the action surface of the meshing force is perpendicular to the axis of the adjusting bolt; a first adjusting inclined plane is arranged on the side wall of the adjusting block, the first adjusting inclined plane is positioned in the groove, and the gradient of the first adjusting inclined plane gradually decreases along the direction close to the axis;
the end part of the fastening jackscrew penetrates through the side wall of the cutter bar body and is positioned in the groove.
2. The chamfer arbor of claim 1, wherein the adjustment structure further comprises a ball nose jackscrew passing through a sidewall of the arbor body, a ball head portion of the ball nose jackscrew being located within the recess and at a bottom of the recess.
3. The chamfer tool holder according to claim 1, wherein at least one protrusion is provided on a sidewall of the adjusting block; at least one matching groove is formed in the side wall of the adjusting bolt, and the adjusting bolt and the adjusting block are meshed with the matching groove through the protrusion.
4. The chamfering tool bar according to claim 3, wherein the adjusting bolt is a socket head adjusting bolt, and the protrusion is provided on a side wall of an end of the socket head adjusting bolt provided with a socket head.
5. The chamfering tool bar according to any one of claims 1-4, wherein the end of the tool bar body provided with the groove is of a truncated cone structure.
6. An insert for use in the chamfer cutter bar of any one of claims 1 to 5, said insert comprising an insert base body, a cutting edge and a mating bevel, said cutting edge being provided at one end of said insert base body and said mating bevel being provided at the other end, said mating bevel being adapted to mate with said first adjustment bevel.
7. The insert as claimed in claim 6, wherein the adjustment structure of the chamfer arbor further comprises a ball-head jackscrew passing through a sidewall of the arbor body, a ball head portion of the ball-head jackscrew being located within the recess and at a bottom of the recess;
and a second adjusting inclined plane is arranged on the side wall of the blade and is used for being matched with the ball head jackscrew.
8. An insert according to claim 6 or 7, wherein the cutting edge is welded to the insert base body.
9. A chamfering tool comprising the chamfering tool holder according to any one of claims 1 to 5, and the insert according to any one of claims 6 to 8, which is mounted in a recess of the chamfering tool holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030096.4U CN209811260U (en) | 2019-01-09 | 2019-01-09 | Chamfering cutter bar, blade and chamfering cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030096.4U CN209811260U (en) | 2019-01-09 | 2019-01-09 | Chamfering cutter bar, blade and chamfering cutter |
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| CN209811260U true CN209811260U (en) | 2019-12-20 |
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| CN201920030096.4U Active CN209811260U (en) | 2019-01-09 | 2019-01-09 | Chamfering cutter bar, blade and chamfering cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513956A (en) * | 2019-01-09 | 2019-03-26 | 北京沃尔德金刚石工具股份有限公司 | A kind of chamfering knife bar, blade and rose reamer |
-
2019
- 2019-01-09 CN CN201920030096.4U patent/CN209811260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513956A (en) * | 2019-01-09 | 2019-03-26 | 北京沃尔德金刚石工具股份有限公司 | A kind of chamfering knife bar, blade and rose reamer |
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